baber/WOPTO huggingface dataset:
Patent GB-1255347-A (GB)
Title: Improvements in semiconductor devices
IPC: H01L29/00
Filed: 1969-09-29
Abstract: 1,255,347. Semi-conductor devices. HITACHI Ltd. 29 Sept., 1969 [2 Oct., 1968], No. 47743/69. Heading H1K. A layer of insulating material doped with space charge inducing ions is separated from the surface of a semi-conductor device by means of an underlying layer of insulating material selected from the group comprising silicon nitride, aluminium oxide, titanium oxide, a mixture of silicon oxide and lead oxide (vitrified) and a mixture of silicon oxide and phosphorus oxide (vitrified). The space charge inducing ions are selected from alkali metals or alkaline earth metals as cations or fluorine, cholorine, hydroxide ions, sulphur, or gold as anions and the underlying insulating layer prevents these ions, which tend to be highly mobile, from reaching the semi-conductor surface. As shown, Fig. 4, an IGFET is produced by forming an oxide layer 2 on the surface of an N type Si substrate, by oxidizing or decomposition of an organo-oxysilane compound, forming windows (6, 7) by photoengraving and diffusing-in boron in an oxidizing atmosphere to form source and drain regions 3 and 4. The windows are re-opened and the thickness of the oxide is reduced between the source and drain regions by etching. The wafer is then heated in dry oxygen to form a thin clean oxide layer, a layer 8 of Si 3 N 4  is deposited by reaction of NH 3  and SiCl 4 , and an insulating layer 9 doped with space charge inducing ions is deposited. The layer 9 may be of SiO 2  and may be doped with S by depositing the layer by decomposition of SiCl 4  in water vapour including sulphuric acid, or may be doped with Au or Na by depositing a clean oxide layer and diffusing in Au from a deposited layer or exposing to an atmosphere containing Na ions respectively. The source and drain windows are reformed by photomasking and etching and source, drain and gate electrodes 10, 11, 12 are deposited. The ion-containing insulating layer may also be of Al 2 O 3 , Si 3 N 4 , SiO 2  + Al 2 O 3 , or SiO 2  + Si 3 N 4 . The semi-conductor material may also be Ge or an intermetallic compound in which case the silicon oxide masking layer is deposited by decomposition of an organo-oxysilane compound. As shown, Fig. 5, a planar bipolar transistor is produced in a P type Si substrate 21 by selective diffusion to form an N type base region 22 and a P type emitter region 23. The surface is covered with a clean oxide layer 24 followed by a layer 25 of Al 2 O 3 . A layer 26 of insulating material containing anions, such as S, is deposited near the edge of the wafer to induce a P type space charge region 27 to interrupt the inversion layer which forms under the oxide layer. Electrodes 28, 29, 30 are then applied. The layer 25 of Al 2 O 3  may be formed by decomposition of triethoxy aluminium in a carrier gas of N 3  or O 2 . The invention may also be applied to diodes, IC's and JUGFET's.
Patent GB-1170830-A (GB)
Title: Magnetic Memory
IPC: G11C11/04
Filed: 1967-10-20
Abstract: 1,170,830. Magnetic memory apparatus. NATIONAL CASH REGISTER CO. 20 Oct., 1967 [14 Nov.. 1966], No. 47832/67. Heading H3B. Data is written in a bi-stable rod-type magnetic storage element by applying a series of pulses to the element, so that it is switched from one stable state to the other in a series of steps. As described, a matrix of storage elements consists of a plurality of conductors, each coated with a thin magnetic film, each coated conductor being surrounded by a word solenoid extending the length of the conductor and a plurality of digit solenoids each extending over an elementary portion of the conductor and defining a storage element. The matrix has a two-element per-digit organization, each coated conductor corresponding to a plurality of multi-digit words, and corresponding digits of different words being grouped together. For writing, a bipolar multi-pulse current is supplied to a selected word solenoid and a unidirectional pulse current is supplied to each of the two digit solenoids corresponding to the selected digit, one of the latter pulses being positive and the other negative. The superimposed magnetic fields at the selected elements cause one element A, to be switched towards positive remanence and the other B, towards negative remanence (Fig. 3), or vice versa (Fig. 4, not shown). For non-destructive read-out a unidirectional pulse is applied to a selected word solenoid and the outputs from the two digit solenoids corresponding to a particular digit are sensed differentially. A linear selection arrangement for the word solenoids is described (Fig. 9, not shown), as is a circuit arrangement for the digit solenoids (Figs. 10 to 12, not shown), both arrangements being generally conventional.
Patent GB-1062629-A (GB)
Title: Improvements in or relating to the preparation of organopolysiloxane resins
Inventor: HARRIS GLYN ISLWYN
IPC: C08G77/00
Filed: 1962-12-21
Abstract: An organosilicon composition having a ratio of organic radicals to Si atoms of 1.01-1.85 is prepared by forming a mixture of the hydrolysis products of a diorganodichlorosilane and a silane of formula RSiClnX3- n, wherein n is 1 or 2, R is a monovalent hydrocarbon radical which may be substituted and X is an alkoxy radical which is less easily hydrolysed than the chlorine atoms under the conditions of the hydrolysis reaction, said hydrolyses being effected at a pH of 5.5-9.0.  In a modification the two silanes may be cohydrolysed. After hydrolysis the composition may be polymerized to form a polysiloxane e.g. by heating in the presence of zinc octoate.  The radical R may be methyl, vinyl or phenyl and X may be an isopropoxy or isobutoxy radical.  In a typical example (1) 3.6 moles of phenylisopropoxydichlorosilane and dimethyldichlorosilane (8.4 moles) were hydrolysed together in the presence of ammonium carbonate, water and diethyl ether.ALSO:Glass cloth tape is coated e.g. by dipping, with a solution of a polysiloxane composition formed by hydrolysing at pH 5.5-9.0 a diorganodichlorosilane and a silane of formula RSi ClnX3-n wherein n is 1 or 2, R is a monovalent substituted or unsubstituted hydrocarbon radical and X is an alkoxy radical, and then polymerizing the mixture of hydrolysis products.  The two silanes may be cohydrolysed, or hydrolysed separately and then mixed.
Patent GB-1240212-A (GB)
Title: Sealed magnetic contact unit
IPC: H01H36/00
Filed: 1969-10-01
Abstract: 1,240,212. Contact devices for magnetic switches. INTERNATIONAL STANDARD ELECTRIC CORP. 1 Oct., 1969 [9 Oct., 1968], No. 48287/69. Heading H1N. A magnetic reed contact device has parallel rigid members 2, 3 sealed in one end of an envelope 1 and the longer member 2 has a magnetic reed armature 4 secured at its inner end and arranged to engage the shorter member 3 when influenced by the magnetic field of a permanent magnet 9 or a coil (not shown). The members 2, 3 are electrically and magnetically conducting and a flux concentrating block 8 is provided. A thin layer of insulating material (not shown) may be provided between the unattached part of the reed 4 and the member 2.
Patent GB-1158789-A (GB)
Title: Prefabricated Wall Panels
Inventor: VARVILL MARK
IPC: C04B28/26
Filed: 1965-11-15
Abstract: 1,158,789. Building boards. M. VARVILL and R. H. BAILEY. 15 Nov., 1966 [15 Nov., 1965], No. 48404/65. Heading B2K. [Also in Division B4-5]. A process for producing a building board faced with glass or asbestos comprises mixing exfoliated vermiculite with sodium silicate, pressing the mixture with the glass or asbestos facing sheet and then applying micro-wave heating.
Patent GB-1535036-A (GB)
Title: Interlacing multifilament yarn
IPC: D02J1/08
Filed: 1975-11-25
Abstract: 1535036 Interlacing filament bundles TORAY INDUSTRIES INC 25 Nov 1975 [28 Nov 1974 5 Dec 1974] 48419/75 Headings D1F and D1W A textured multifilament yarn formed with alternating compact and open portions is obtained by passing a single bundle of filaments Y under continuous tension over two spaced non rotary curved surfaces 40a, 40b so that the mean thread line is bent at each point of contact and at least one fluid jet is applied perpendicular to the bundle to cause it to vibrate between the curved surfaces with an amplitude limited by a hollow member 34 through which the filaments pass. Preferably the jet vibrates the bundle so that the filaments occupy a spindle-shaped volume situated between the curved surfaces. A tube 34 is provided to limit the cross-section of this spindle-shaped volume. 1, 2, 3 or 4 jets of fluid may be applied at the midpoint between the curved surfaces 40a, 40b by passage(s) 39 in tube 34. In the embodiment of Figs. 11, 23 the curved surfaces are bushes 50a, 50b fitting into the bore 34a of interlacing tube 43, the tube being at an angle to the direction of travel of the bundle before and after interlacing. Preferably the projection(s) of passage(s) 39 and the straight line between the points at which the path of the bundle bends intersect on the longitudinal axis of interlacing tube 34. The fluid may be air or steam. The filament bundle may be drawn and false-twisted, at 30, Fig. 11, optionally hot relaxed and then interlaced in a continuous process, two bundles may be false twisted, in opposite directions brought together and interlaced, a false twisted bundle may be brought together with a non false twisted bundle and interlaced. The drawing and/or the false twisting may be omitted, ex. 11, or replaced by edge, stuffer box, gear or knitdeknit crimping, ex. 12. The product yarn comprises compact interlaced portions separated by open substantially non-interlaced portions. At least 50% of the compact portions are disentangleable by disturbing only the 2 adjacent compact portions. Preferably at least 50% are disentangleable without disturbing any other compact portion. The filaments may be of polyethylene terephthalate, cuprammonium rayon, acetate rayon acrylic, nylon 6 or nylon 66. The yarn is claimed in Specification 1535037.
Patent GB-1322059-A (GB)
Title: Teaching apparatus
IPC: G03B21/56
Filed: 1970-10-12
Abstract: 1322059 Teaching machines MATSUSHITA ELECTRIC INDUSTRIAL CO Ltd 12 Oct 1970 [11 Oct 1969] 48451/70 Heading G5G Teaching apparatus comprises a casing 1 having a back-projection screen 2 parts of which are normally obscurbed by shutters 3a-3d which carry photoconductive elements 8a-8d and which are rotatably mounted on a shaft 5 for individual movement by knobs 6a-6d projecting through apertures in the casing 1. In operation, questions are projected on to the unobscured part of the screen 2 and different answers on to respective shutters; the correct answer is projected as a bright image, whereby the resistance of the corresponding element 8a- 8d is lowered to permit charging of a capacitor (Fig. 3, not shown), whereas the incorrect answers are projected as dark images. A student indicates his answer by rotating a selected shutter which closes a switch 10a-10d at the end of its travel; if the chosen answer is correct, the capacitor associated with the selected shutter is in a charged state and closure of the switch enables the charged capacitor to discharge over a transistor circuit which applies a pulse to a counter which records a correct choice. In an alternative arrangement (Figs. 4 and 5, not shown), the elements 8a-8d are mounted adjacent the switches and normally receive light from concave reflectors on the shutters.
Patent GB-1504550-A (GB)
Title: Apparatus for washing the interior of a truck or trailer body
IPC: B60S3/00
Filed: 1975-11-26
Abstract: 1504550 Cleaning interiors of vehicles SAFEWAY STORES Inc 26 Nov 1975 [23 Dec 1974] 48608/75 Heading B7J An apparatus 10, Figs. 1 and 2, for washing the interior of a truck or trailer body 11, e.g. associated with a tractor 12, comprises the combination of an elongate horizontal boom 13 mounted for movement horizontally along its own axis by means, e.g. a motor 53, Fig. 5 (not shown), relative to a fixed pedestal 14 and into and out of the interior of the body 11, when the latter is moved into a parked position in a washing stall 16; a washer head 73 mounted on the end of the boom 13 adjacent the stall 16, spray nozzle means 148, 186, Figs. 7 and 8, on the washer head 73 for directing detergent liquid and rinse water respectively against the interior of the body 11; rotary brush means 109 on the head 73 for cleaning the floor of the interior of the body 11; and control means including inter alia photo-electric cell and light beam devices 225 and 229 controlling circuitry to actuate the spray means and brush means in a programmed sequence when the head 73 is within the interior of the body. The motor 53 carried by the pedestal 14, drives a sprocket in turn driving a chain 57 connected to the boom 13 at its ends remote from the stall 16 by a bracket 59, Fig. 4, and at the outer end to the boom by a bracket 60, Fig. 7. The brush 109 comprises an inner and two outer coaxial brushes 115, 116, 117, Fig. 8, on an axle 110 rotatable by an electric motor 118 and chain drive 122, 132, the brush being mounted on a counterweighted frame for vertical swinging movement on an axis 84 so that the brush may be raised to the full line position shown in Fig. 7 or to the lowered dot-dash position by means of a hoist frame pivoted on an axle 84 mounted transversely of the boom 13. The hoist frame 77, 78 is vertically swingable between upper and lower limit switches 107, 108 by an electric motor 102 driving a cam 94 engaging a wear pad 97 on the frame 77, 78. The brush is also mounted in a frame for lateral swinging movement at pivots 79, 80 and 82, 83, Fig. 8. Water and detergent are supplied by hoses and pipes carried by a floating linkage 182, Fig. 4, comprising horizontal swingable arms 207, 209 connecting the end of the boom 13 remote from the bay 16 and a fixed foundation by the side of the boom 13. Red and green indicator lights 227, 228 are mounted at the end of the bay 16 remote from the boom 13 to indicate to the driver of the tractor when the trailer or truck is to remain parked as shown in Fig. 2 or may be moved away from the boom, Fig. 1. The whole cleaning operation of backing the body against the pedestal 14 and entering the boom into the body, then retracting it and finally driving the body away from the position Fig. 2 with the various detergent and rinsing sprays and scrubbing by the brush are described with reference to Fig. 10 (not shown).
Patent GB-966159-A (GB)
Title: Combination coat and pants leg protectors
IPC: A41D3/06
Filed: 1962-12-31
Abstract: 966,159. Coats. P. FISCH. Dec. 31, 1962, No. 48995/62. Heading A3V. A coat comprises a pair of leg protectors the upper ends of which are adjustably and detachably connected to the inside of the coat and means to maintain the leg protectors in folded condition inside the coat, and means inside the coat to cover at least part of the folded leg protectors. Leg protectors 12 are connected by a strap 56 to a loop 55 suspended beneath the armhole and to a loop 49 of a friction clamp attached to the upper end of the leg protectors. The leg protectors are raised by connecting the end of the strap 56 with the upper end of the leg protectors by press stud fasteners 62, 63. The leg protectors are held in folded positions by connecting fasteners 64, 65 at the top and bottom and are retained in pockets 70 in the coat lining. In a modification the leg protectors are raised by looping the strap and the leg protectors are maintained folded, with the lower end secured to the top end of the strap, The folded trousers are retained in the lower part of a two part lining. In a further modification, a buckled strap suspends the leg protectors from a strip secured to the lining and having two laterally spaced fasteners which engage studs on the folded leg protectors. The folded trousers are maintained within a pocket formed in the lining. The leg protectors each comprises two sections stitched together along an edge and closed by a zip fastener along a front and inner side opening.
Patent GB-1286124-A (GB)
Title: Conveyor
Inventor: MAGALDI PAOLO
IPC: B65G17/06
Filed: 1969-10-08
Abstract: 1286124 Discharging furnaces P MAGALDI 8 Oct 1969 [16 Dec 1968] 49518/69 Heading F4B [Also in Division B8] A conveyor suitable for conveying hot materials such as slag, hot clinker, coke, hot casting sand &c. comprises an endless, steelmesh driving belt 3 and a plurality of overoverlapping trough shaped carriers 2 attached to the belt by U-shaped members 9. The belt is made of similar diameter wires of circular cross-section, so that there is a small degree of contact between the belt and the carriers, which in combination with the wide spacing of the connecting members 9, results in a high degree of thermal separation between the carriers and the belt. The carriers are trapezoidal in shape and have approximately 50% overlap and may alternately be in the form of buckets.
Patent GB-1349225-A (GB)
Title: Machine tool including apparatus for supporting articles
Inventor: SEIDENFADEN H
IPC: B23Q1/52
Filed: 1972-10-27
Abstract: 1349225 Work-holders VEREINIGTE FLUGTECHNISCHE WERKE-FOKKER GmbH 27 Oct 1972 [27 Oct 1971] 49746/72 Headings B3B and B3D A machine tool includes apparatus for supporting workpieces to be machined comprising a supporting body 1 mounted on a rotary table 2, at least two lateral faces of the body 1 having an array of locating bores 5 shaped at regular rectangular coordinate distances, and an arrangement of grooves 6 adapted to receive sealing means and connected to a vacuum system. A set of workpiece supports 7, 8, 9, are held on the lateral face by fixing bolts in the bores 5 and/or by a vacuum. All grooves 6 not covered by a support 7, 8, 9 are sealed and a vacuum acts only on the support. The supports comprise a fixed spigot (7), a spigot movable along one axes (8), and a spigot movable along two orthogonal axis (9). A workpiece 11 is attached to the three spigots. The top surface of the supporting body 1 may also have fixing bores and a centring bore.
Patent GB-1175396-A (GB)
Title: Sliding Clasp Fastener and Apparatus for the manufacture thereof
Inventor: CROWTHER PHILLIP SIMPSON
IPC: A44B19/40
Filed: 1967-11-03
Abstract: 1,175,396. Making sliding clasp fastener stringers. LIGHTNING FASTENERS Ltd. 23 Oct., 1968 [3 Nov., 1967], No. 50131/67. Heading E2S. A sliding clasp fastener stringer is assembled by passing a generally helical filament between oppositely driven toothed -gripping members 22 which compress the elements 10 of the filament, pressing a carrier tape 15 over the projecting coupling portions 12 of the filament, and releasing the compression on the elements 10 so that their inherent resilience retains the carrier tape 15. As described a cotton tape 15 including a thermoplastics warp thread 16 is supplied under tension below a freely rotatable star wheel 28 whose teeth 29 form a series of apertures (30), Fig. 2 (not shown). The filament is guided by the rollers 22 along a groove 21 in a support plate 20, and the tape 15 is pressed down onto the filament by a vertically reciprocable brush 31, the coupling portions 12 entering the apertures (30). Wide and narrow tape portions 18, 19 are folded over and steam-pressed to enclose interconnecting portions 13 between the elements 10, and the thread 16 is partially fused to interlock weft threads and possibly the portions 13.
Patent GB-1126647-A (GB)
Title: Improvements in or relating to thermally responsive switch elements
IPC: H01H61/02
Filed: 1966-11-09
Abstract: 1,126,647. Temperature responsive actuating elements. GENERAL ELECTRIC CO. Nov. 9, 1966 [Dec. 30, 1965] No. 50170/66. Heading G1D. [Also in Division H1] A thermally responsive switch element comprises a bi-metallic strip 12 carrying a contact 21, strip 12 including a plurality of integrally formed channel-defining portions 40, 42, 43 separated from each other by slits 38, 39 and spaced alternately in opposite directions from the top and bottom surfaces 36, 37 of the remainder of the strip 12, and on electrical heater 23 securely mounted in the channel, a first surface portion of heater 23 confronting the top surface 36 of strip 12 in one of the channel-defining portions 42, and a second surface portion of heater 23 confronting the bottom surface 37 of strip 12 in or adjacent one, 40, 43, of the channel-defining portions. The strip 12 is mounted in a switch, separated at one end 14 by insulating blocks from the end of a second limitable strip (13) carrying a contact (22) but no heater, the contacts 21, (22) normally engaged, but separated when strip 12 deflect in response to the energization of heater 23. Strip 12 and (13) both deflect equal distances in the same direction in response to changes of ambient temperature to maintain the contacts touching when heater 23 is not energized.
Patent GB-1193850-A (GB)
Title: Improvements in or relating to Windows
Inventor: TAYLOR AUBREY ROBERT
IPC: E06B3/34
Filed: 1967-11-07
Abstract: 1,193,850. Window fastenings. A. R. TAYLOR and R. L. HARRIS. 7 Nov., 1968 [7 Nov., 1967], No. 50524/67. Heading E2A. A window comprises a fixed frame 1 and a swinging frame 2 hinged hereto and swing- able through the fixed frame in both directions, in which the fixed frame carries a member 3 engaging a handle 4 on the swinging frame 2 whereby the latter may be fastened to the fixed frame in a position such that both frames lie in substantially one and the same plane, the member 3 including a stop 7 which is movable under the control of the handle between positioins in one of which it allows the swinging frame to swing freely through 'the fixed frame in both directions and in another of which it it prevents the swinging frame from swinging through and past the fixed frame. As shown in which the frame 2 is swingable about pivots (14), Fig. 6 (not shown) the stop 7 is pivoted to the member 3 on the fixed frame 1 and is biassed to one or the other of two positions by an overcentre spring (not shown) connected between points 9, 9. In the position shown, the stop member prevents the swinging frame 2 from swinging through the fixed frame 1 and the frame 2 may be locked in the closed position by engagement of a portion 10 of the handle 4 with the member 3 which is of box form. When the handle 4 is moved anticlockwise about its pivot 11 the portion 10 snaps the stop to its other position thereby allowing the frame 2 to swing through the frame 1. The parts are restored to the positions shown, by rotation of the handle clockwise after moving the frame 2 into the same plane as that of the frame 1. The handle 4 comprises a pin 41 which carries a grooved sleeve 43 retained on the pin by a dowel 44. The sleeve 43 includes a projection 45 which is engaged (between projections 46 of a disc 47, slidable on the pin 41. A button 48 on the disc 47 extends through a hole 49 in the body of the handle, and the arrangement is such that rotation of the handle is possible only when the button is depressed against a spring to free the dlisc 47 from a dowel 51 with which one of three notches in the disc is engageable whereby to index the handle in one of three rotary positions. The frame 2 may be held open by a stay having pegs on the part attached to the frame 2, engageable with notches on the frame 1. Weather strips are provided on the hinged edge of the frame 2 and on the other edges of the frame 1.
Patent GB-1511043-A (GB)
Title: Current source
IPC: H03D3/06
Filed: 1975-04-02
Abstract: 1511043 Transistor amplifiers GENERAL ELECTRIC CO 2 April 1975 [4 April 1974] 50661/77 Divided out of 1511041 Addition to 1503173 Heading H3T A current source suitable for use as an AGCAFC stage and claimed in claim 1 of the parent specification is modified by having the emitter of the second additional transistor connected via a resistance 46 selectively in operational use to a first reference potential or to a second steady D.C. potential as to render it conductive or non- conductive respectively for determining the static D.C. level of the current source output. Reference is also made to prior UK Specification 1,503,171.